EP0947901A3 - Maintenance monitor system for steam turbine valves - Google Patents

Maintenance monitor system for steam turbine valves Download PDF

Info

Publication number
EP0947901A3
EP0947901A3 EP99302523A EP99302523A EP0947901A3 EP 0947901 A3 EP0947901 A3 EP 0947901A3 EP 99302523 A EP99302523 A EP 99302523A EP 99302523 A EP99302523 A EP 99302523A EP 0947901 A3 EP0947901 A3 EP 0947901A3
Authority
EP
European Patent Office
Prior art keywords
valve
steam turbine
move
opening
monitor system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99302523A
Other languages
German (de)
French (fr)
Other versions
EP0947901A2 (en
Inventor
Donald Harry Davis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of EP0947901A2 publication Critical patent/EP0947901A2/en
Publication of EP0947901A3 publication Critical patent/EP0947901A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0066—Hydraulic or pneumatic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Turbines (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

In an operating steam turbine, a valve monitoring system is provided for a valve assembly having a valve (12), a valve stem (16) supporting the valve and adapted to move in valve opening and valve closing directions; a valve actuator (18) for causing the valve stem to move in either of the directions; a first sensor (38) for measuring stroke length of the valve stem in opening and closing directions; a second sensor (36) for measuring hydraulic pressure required to move the valve in the opening and closing directions; and means (40,42) for recording signals from the first and second sensors and comparing the signals to corresponding reference values to thereby enable identification of abnormal valve behavior.
EP99302523A 1998-04-03 1999-03-31 Maintenance monitor system for steam turbine valves Withdrawn EP0947901A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5474198A 1998-04-03 1998-04-03
US54741 1998-04-03

Publications (2)

Publication Number Publication Date
EP0947901A2 EP0947901A2 (en) 1999-10-06
EP0947901A3 true EP0947901A3 (en) 1999-11-17

Family

ID=21993205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99302523A Withdrawn EP0947901A3 (en) 1998-04-03 1999-03-31 Maintenance monitor system for steam turbine valves

Country Status (3)

Country Link
EP (1) EP0947901A3 (en)
JP (1) JPH11315955A (en)
KR (1) KR19990082805A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457337C2 (en) * 2007-03-29 2012-07-27 Дженерал Электрик Компани Method of monitoring steam turbine valve assemblies

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917737A1 (en) * 1999-04-20 2000-11-23 Arca Regler Gmbh Regulator has a housing and driving member operated by a setting device
WO2002017028A1 (en) * 2000-08-22 2002-02-28 Fisher Controls International, Inc. Method for detecting plug wear
AUPR966801A0 (en) * 2001-12-20 2002-01-24 Goyen Controls Co Pty Limited Cleaning air system control valves and methods of operating and constructing cleaning air systems
DE10303889B3 (en) * 2003-01-30 2004-04-08 Bar Pneumatische Steuerungssysteme Gmbh Diagnosis method for pneumatic setting drive using monitoring of static pressure component of working space pressure between 2 operating points of setting drive
WO2005112551A2 (en) * 2004-05-21 2005-12-01 Hansung Engineering Co. Ltd Method for compensating for partial shade in photovoltaic power system
CN100507324C (en) * 2006-03-29 2009-07-01 宝山钢铁股份有限公司 Great flow rate proportional water valve
US7886766B2 (en) * 2006-12-27 2011-02-15 Eltav Wireless Monitoring Ltd. Device and system for monitoring valves
US20080203337A1 (en) * 2007-02-28 2008-08-28 Honeywell International, Inc. Actuator assembly with hermetic seal and magnetic rotational coupler
JP5501172B2 (en) * 2010-09-13 2014-05-21 リンナイ株式会社 Water stop device
KR101439061B1 (en) * 2013-11-05 2014-09-05 한전케이피에스 주식회사 Spring washer calibration device for air operated valve actuator
CN104214415B (en) * 2014-08-31 2016-09-14 贵州电力试验研究院 A kind of steam turbine high-pressure cylinder enters steam control valve opening amount signal flexible measurement method
JP6564213B2 (en) * 2015-03-25 2019-08-21 株式会社フジキン Fluid control device
US20180058255A1 (en) * 2016-08-31 2018-03-01 General Electric Technology Gmbh Guide Condition Assessment Module For A Valve And Actuator Monitoring System
ES2882148T3 (en) * 2018-05-08 2021-12-01 Alfa Laval Corp Ab Valve controller and method of controlling a valve
JP6454815B1 (en) * 2018-10-01 2019-01-16 東北発電工業株式会社 Measuring method and measuring aid
WO2020214159A1 (en) * 2019-04-17 2020-10-22 Siemens Energy, Inc. Valve monitoring system and method
US11835152B2 (en) * 2020-01-17 2023-12-05 Fisher Controls International Llc Method and system for executing online tests of valve seating integrity for control valves

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049578A2 (en) * 1980-09-29 1982-04-14 Westinghouse Electric Corporation Steam Turbine-generator control system
GB2194648A (en) * 1986-08-21 1988-03-09 Apv Uk Self-monitoring flow control valve
EP0315391A2 (en) * 1987-10-30 1989-05-10 Westinghouse Electric Corporation Online valve diagnostic monitoring system
US4976144A (en) * 1988-08-25 1990-12-11 Fisher Controls International, Inc. Diagnostic apparatus and method for fluid control valves
WO1992014087A1 (en) * 1991-01-30 1992-08-20 Combustion Engineering, Inc. Valve diagnostic system including auxiliary transducer box
WO1993024779A1 (en) * 1992-06-03 1993-12-09 Siemens Aktiengesellschaft Process and device for testing a fitting operated by a medium
EP0660017A1 (en) * 1993-12-22 1995-06-28 NUOVO PIGNONE S.p.A. Diagnostic control system for a pneumatic valve actuator
DE19724754A1 (en) * 1996-06-06 1997-12-11 Yamatake Honeywell Co Ltd Determining abnormalities in gas or liquid flow control valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049578A2 (en) * 1980-09-29 1982-04-14 Westinghouse Electric Corporation Steam Turbine-generator control system
GB2194648A (en) * 1986-08-21 1988-03-09 Apv Uk Self-monitoring flow control valve
EP0315391A2 (en) * 1987-10-30 1989-05-10 Westinghouse Electric Corporation Online valve diagnostic monitoring system
US4976144A (en) * 1988-08-25 1990-12-11 Fisher Controls International, Inc. Diagnostic apparatus and method for fluid control valves
WO1992014087A1 (en) * 1991-01-30 1992-08-20 Combustion Engineering, Inc. Valve diagnostic system including auxiliary transducer box
WO1993024779A1 (en) * 1992-06-03 1993-12-09 Siemens Aktiengesellschaft Process and device for testing a fitting operated by a medium
EP0660017A1 (en) * 1993-12-22 1995-06-28 NUOVO PIGNONE S.p.A. Diagnostic control system for a pneumatic valve actuator
DE19724754A1 (en) * 1996-06-06 1997-12-11 Yamatake Honeywell Co Ltd Determining abnormalities in gas or liquid flow control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457337C2 (en) * 2007-03-29 2012-07-27 Дженерал Электрик Компани Method of monitoring steam turbine valve assemblies

Also Published As

Publication number Publication date
KR19990082805A (en) 1999-11-25
JPH11315955A (en) 1999-11-16
EP0947901A2 (en) 1999-10-06

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